THE REAL SCIENCE OF POLYMER ACTIVATION

Visit our PolyBlend® Liquid Polymer Sizing Guide athttp://ugsichemicalfeed.com/polyblend-sizing.php

The Real Science of Polymer Activation

Written by Yong Kim, PhDTechnical Director,

UGSI Chemical Feed, Inc.

Polymers vastly improve the operations of water and wastewater plants by accelerating settling of particles and improving sludge dewatering. Polymers (emulsion and dry) require the application of different levels of energy at different times to get the optimal “uncoiling” of the polymer chains without damaging or shortening the polymer chain. High shear mixing is required to prevent agglomerations, but over-mixing can damage the polymer – the key is to shift mixing energy over time to get the optimal results.

“The PolyBlend® polymer activation systems have performed flawlessly since installation and will result in very significant polymer saving for our facility.”

Carlos Cardoso, Water Pollution Control Manager, City of Dartmouth, MA

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PolyBlend® PB Series

At the center of the PolyBlend® PB Series polymer feed system is the unique multi-zone mixing chamber. The advanced design provides uniform dispersion energy at the moment of initial wetting. The high-energy mix prevents agglomerations and eliminates the need for extended mixing and aging by applying the right energy at the right time. The low-energy zone continues to activate the hydrated polymer without destroying the fragile polymer chains. The result is maximum polymer activation and improved polymer performance.

The compact design of the PolyBlend® PB Series provides easy installation. The corrosion-resistant, stainless steel chassis houses the lightweight, portable system, allowing for easy mobility.

“We provided a PolyBlend® PB100 demonstration unit at no charge and saved our client 35% in polymer. We purchased the unit within a week of our free 30-day demo period.”

Ladd Ojala, Area Manager, Chemetall

The PolyBlend® M Series Magnum is the latest development in our industry-leading technology, frequently providing 20%-30%+ more polymer savings through superior two-stage mechanical mixing, with improved maintenance and serviceability. Optimized mixing energy ensures consistent performance to handle new polymer developments, ultra-high molecular weights, different charge densities and new chemistries. The compact size and open–frame design provide easy installation in confined spaces and facilitate easy component access and maintenance. Control options (below) range from simple manual to full PLC-based automatic control with complete SCADA interface.

PolyBlend® Magnum System

PolyBlend® M Series Liquid Polymer Feed Systems

PolyBlend® M-Lo SystemVisit our PolyBlend® Liquid Polymer Sizing Guide at http://ugsichemicalfeed.com/polyblend-sizing.php

Low Shear Mixing ZoneSolution travels to a low

energy zone throughbaffle plates, so activation

can continue withoutdamaging the polymer.

High Speed Open Vane ImpellerHigh energy mixing at the point

of initial wetting to expose individual polymer particles to

dilution water and prevent agglomeration.

Baffle PlatesSeparates high and low

shear zones for discretetwo-stage mixing.

Polymer Injection PointPolymer is injected into the impeller to increase hydration of polymer particles.

Direct Drive

SecondaryPost Dilution

Water Inlet

Solution Discharge

Primary DilutionWater Inlet

High Shear Mixing ZoneHigh energy mixing ensuresfully activated polymer. Flowpattern and baffling limitexposure to high energy.

Neat Polymer InletQuick DisconnectCheck Valve

Water Injection PointWater is drawn into the impeller throat to mixwith polymer.

Neat Polymer Flow

Dilution Water Flow

Diluted Polymer Solution Flow

The Magnum design, including mix chamber retrofit kits, is available for capacities between 240 to 2,400 GPH.

Isolation ValvePrevents moisture contamination of dry powder.

Control BaffleCreates optimum height for “liquid funnel.”

Dry/Liquid InterfaceCreates optimum environment for introducing dry powder and creating a homogeneous solution.

Dilution Water Inlet

Mixing ImpellerCreates a vacuum and provides the initial high-energy mix necessary to prevent agglomerations.

Stainless Steel Corrosion-Resistant Construction

Acrylic Cover

Dry Powder FeederAccurately meters dry powder for consistent solution concentration.

“Liquid Funnel” Water InletCreates a self-cleaning water funnel which prevents build-up on stationary surfaces.

Solution Discharge to Mix Tank

High-Energy MixingAfter passing the impeller, the solutions moves up and around the vortex guide before exit.

Vortex Guide TubeDraws the contents of dry/liquid interface into high-shear mixing impeller.

To create the ideal environment for the first stage of dry polymer dissolution, crucial initial wetting occurs in the DD4 disperser. Here, polymer and water are subjected to high energy created by mechanical mixing. The dry polymer is accurately metered into the high-energy mix chamber and is properly activated with water. After brief exposure, the solution exits the high-energy disperser. The point of initial polymer / water contact is visible to the operator through a clear, acrylic interface.

Low-Energy Mix Tank

From the disperser, the polymer solution flows into the mix tank. Most polymer mix tanks are not uniform in their mixing energy. Agglomerations form in the portions of the tank that receive the least mixing energy while polymer chains are broken up at the tip of the rotating mixing blade. In contrast, the DP Series tank is specifically designed to be fully uniform in mixing intensity. The rotating impeller is a “hollow wing,” the length of which is over half the width of the tank. The hydraulics of the system make the impeller act like a pump, continuously moving the solution vertically as well as horizontally. Moreover, the square tank design further contributes to uniformity of the mixing energy, eliminating the potential for a damaging vortex. The result is minimal agglomerations and minimal broken polymer chains. In other words, minimal waste. Polymer costs are reduced and performance improved.

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PolyBlend® DP Series - Designed for Superior Mixing

“PolyBlend® has been performing exceptionally well for Windsor, Ontario, for over two decades. With basic maintenance, we’ve needed very few parts over the years, and when you see the equipment, it is in excellent condition!”

Tony Bietola, Plant ManagerLou Romano Water Reclamation Plant

The PolyBlend® DP110 is a lower cost option specifically designed to provide uniform mixing. Dry polymer and water are mixed in the vortex created by the rotating tank impeller. The unique mixing process provides maximum polymer preparation and activation.

The PolyBlend® DP500 consists of the DD4 dry polymer disperser, a fiberglass mix tank, and a gravity-fed fiberglass hold tank. The DP500 is specifically designed to provide uniform mixing. Dry polymer and water are initially mixed in the DD4 polymer disperser, exposing the solution to a high-shear agitation via mechanical mixing. The high-shear agitation ensures proper activation of the polymer and prevents unwanted agglomerations.

The PolyBlend® DP800 is an integrated equipment package capable of automatically preparing a homogeneous polymer solution. The DP800 consists of the DD4 dry polymer disperser, a stainless steel mix tank, and a gravity-fed stainless steel hold tank.

The PolyBlend® DP2000 is an integrated equipment package capable of automatically preparing a homogeneous polymer solution. The DP2000 consists of the DD4 dry polymer dispenser and large side-by-side stainless steel mix and hold tanks.

PolyBlend® DP Dry/Liquid Polymer Feed Systems

1901 West Garden Rd, Vineland, NJ 08360Tel: (856) 896-2160 | Fax: (856) 457-5920Email: info@ugsichemicalfeed.comwww.ugsichemicalfeed.com

© 2017 UGSI Chemical Feed, Inc.Subject to change without prior notice.Literature No. CF.480.000.000.SB.0917

PolyBlend® is a trademark of UGSI Chemical Feed, Inc.The information provided in this literature contains merely general descriptions or characteristics of performance which in actual case of use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of a written contract.

Seeing Is Believing

Let us demonstrate the effectiveness of the PolyBlend® polymer mixing system with your existing or new application. We’re so sure you’ll be satisfied that we’ll bring the on-site trial to you for a side-by-side comparison at no charge.

Liquid PolyBlend® system demonstration units are also available.

Visit our PolyBlend® Liquid Polymer Sizing Guide athttp://ugsichemicalfeed.com/polyblend-sizing.php

“The PolyBlend® DP800 Demo Trailer was very simple to use. I just set the settings and walked away; it was extremely user-friendly. The way it blends and the resulting polymer solution – and the reduction in polymer usage – made this an excellent unit.”

Brad Anderson, O&M Tech VFairfield-Suisun Sewer District, CA

Parts and accessories available